In a factor market household contribute several factors of production for the production of a finished goods; so house hold can provide all 3 except Capital because the companies are the purchasers in this case since the want to produce a finished product.
if you look at the 10 ammendments you can see they are ment to favor and protect individuals from the government. The ammendment are like this because Americans did not like the way they where being treated as a colony by the British ,so they try to prevent these mistakes from happening again with ammendments.